Clutch mechanism.



PATENTED JULY 7, 1903.

C. JNAlZY,` FILS. CLUTCH MBGHANISM.

APrLIoATIoN FILED mxo. 1 6, 1902.

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Patented July '7, 1903.

PATENT OFFICE..

` CAMILLE JENATZY, FILS, OF BRUSSELS, BELGIUM.

CLUTCH NlECHANlSlVI.

SPEGIFECATION brmng part of Letters Patent No. 732,943, dated uly' 7,1903.

Application filed December 16, 1902. Serial No. 135,391. (No modeLl i Toall whom. it muy concern:

Beit known that I, CAMILLE JENATZY, Fils,

engineer, a subject of the King of Belgium,

anda resident of 222 Rue du Progresrussels, 1n the Kingdom of Belgium,have invented certain new and useful Improvements in and Relating toClutch Mechanism; and I do hereby declare the following to be a full,clear, and exact description of the invention, such `as will enableothers skilled in the art to which and has for its objects to producevariable magnetic energies at will, to effect positive action of theclutch at will, and to produce an efficient, inexpensive, and durablestructure. A

In the drawings forming part of this specification, Figure 1 illustratesthe device in elevation,the armaturebeing represented as connected to apower-shaft, the clutch mechanism being connected to a driven shaft; andFig. 2 shows the arrangement of teeth employed on the clutch members.

Similar characters of reference indicate like parts throughout thefigures.

To a spindle 1 of a power-shaft 2, mounted in suitable bearings 3, is amember comprising arms 4and a hub 5, which is held in place, preferably,by a nut 6. These arms 4 carry an annular rim 7, which is provided witha recess 8 and into which is wound a wire 9 to form an armature, one endof said wire being connected to a commutator lO, carried by andinsulated, as at 11, to the arms 4, the other end being grounded to oneof said arms 4, as at l2. The windings 9 are held in place by a washer18, which is secured within the recess of the rim 7 by suitable means,such as bolts 14. Covering the washer 13 is a sheet-metal ring 15,preferably of brass, which is held in placeby two concentric rings 16Vand 17, respectively, preferably of soft metal, and which are secured tothe lips of the rim 7 by screws 1S and'l9, preferably of bronze, and`this ring, as is obvious, provides against remnant magnetism at thearmature.

A drivingshaft 2O is provided with a square extremity 21, upon which ismounted a sleeve 22, adapted to slide at will lengthwise upon saidsquared portion of the shaft 20, the sliding being facilitated by acompression-sprin g 23, disposed upon the squared portion of the shaftand interposed between `the shoulder 24 and the extremity of the' sleeve22. This sleeve 22 is provided at one end with a collar 25, whichreceives the eX- tremity 26 of a rocking lever 27, suitably mounted inbearings 28, and which is connected to a rod 29, provided with anelongated eye 30, in which is movably connected p a level1 3l, mountedin sui-table bearings 32.

This sleeve 22 is also provided with an annular plate or flange33,'around one side of which is disposed a series of teeth 34.

Mounted upon the sleeve 22 is a hub 35,hav-

the trailer being connected to said lever 31 by a rod 45, so that whenthe lever 3l is released and gives effect to the action of the spring 46through the instrumentality of the rod 45 the trailer 44 will contactwith the brush 4l and the first resistance-point on the rheostat andform a switch.

Aline of circuit is formed one end of which is connected to a segmentalbrush 43, whence it proceeds to the battery 4S and is grounded to thebearing 3, the other end of the circuit being connected to the rheostat4l and terminating in a commutator-brush 47. l

In practice the lever 3l is released, and an action of thespring 46thereon causes it to reverse, which throws the trailer into contact withthe first resistance-point of the rheostat 4l and the segmental brush43, which closes the circuit and excites the armature, whereby the plate37, carried by the hub 35,is attracted. The continuous rotation of thearmature will cause the hub 35 to rotate, according to the amount ofenergy imparted to the armature` IOO through the instrumentality of therheostat, it being understood that the more resistance offered at therheostat the less perm an ent contact of the plate 37 to the armature,which of course allows some slipping motion in the plate. As the lever31 is more freely drawn over to its other extreme, the resistance in thecurrent is lessened, the energy in the armature is increased, finallycausing permanent contact between said armature and the plate 37. At thesame time the rocking frame 27, together with the compression-spring 23,forces the sleeve 22 over and lcauses the teeth 34C to engage with theteeth 38 and 39 of the hub 35. The pressure of the spring 23 will causethe teeth 34 to first frictionally bear against the face of the teeth 39and finally against the teeth 3S laterally, which, as is obvious,gradually increases the momentum of the sleeve 22 and shaft 20,th erebyavoiding severe shock. -To release the clutch, the lever 3l is forced toits initial position, which will separate the teeth of the clutch andalso break or open the circuit, whereby, as is obvious, the energy inthe armature will be out off.

It will be understood, of course, that any suitable means forcontrolling the lever 31 may be resorted to, also that variations ofconstruction and arrangement may be resorted to within the purview ofthis invention.

It will now be seenthat in this invention is comprised a powershaftprovided with a g rotary armature, a driving-shaft, which has securedthereto aportion of a clutch mechanism, also mounted upon said shaft andadapt-A ed to be controlled by said armature, and means for energizingthe armature to control the clutch, and, further, that by thisarrangement one portion of the clutch may rotate independent of theother portion at variable I "clutch provided with a plate adapted to bespeeds, according to the amount of current imparted to the armature,during which period the other portion of the clutch is being graduallyinterlocked with the first -named portion, whereby the shaft bearing theclutch i may be gradually rotated, of course the speed being increasedaccording to the increased current applied.

Having thus described my invention, I claiml. In a magnetic clutch, thecombination of an armature, a clutch adapted to be engaged and released,a plate carried by said clutch and adapted to be attracted to saidarmature, means to operate said clutch, and means connected to saidclutch Operating means for energizing the armature.

2. In a magnetic clutch, the combination of an armature, a clutchadapted to be engaged and released, a plate carried by said clutch andadapted to be attracted to said armature, means to Operate said clutch,and means connected to said clutch operating means for graduallyenergizing the armature.

3. In a magnetic clutch, the combination of a rotary armature, a clutchadapted to be engaged thereby and released therefrom, a lever foroperating the clutch, and means connected to said lever for graduallyenergizing the armature. 4. In a magnetic clutch, the combination of arotary armature, a clutch adapted to be rotated thereby, means forengaging and releasingthe clutch, and means connected with thelengagingand releasing means and the armature for gradually energizing thelatter.

5. In a magnetic clutch, the combination of a rotary armature, a clutchadapted to be rotated thereby, means for engaging and releasing theclutch, and rheostat connected with the engaging and releasing means andthe armature for gradually energizing the.

latter.

6. In a magnetic clutch, the combination of a rotary armature, a clutchadapted to be rotated thereby, a lever for engaging and re leasing theclutch, and means connected with the engaging and releasing means andthe armature for gradually energizing the latter.

7. In a magnetic clutch, the combination of la rotary armature, a clutchcarrying a plate situated in registry with said armature, mean s d foractuating said clutch and' means for energizing the armature, attractingthe clutchplate, whereby the clutch mechanism may be operated.

8. In a clutch mechanism the combination of a rotatably-m ountedarmature, a rotatable `attracted to said armature, means for engag- 3,ing the clutch and means for energizing the i 'armature to attract saidplate.

9. In an electromagnetic clutch the combi nation of a rotatable armaturemounted on a driving-shaft, a clutch carried by a driven shaft andhaving a metal plate, electricallycontrolled means for energizing thearmature to attract said plate and means for engaging clutch.

In testimony that I claim the foregoing as my invention I have signed myname in presence of two subscribing witnesses.

' CAMILLEJENATZY, FILS. Witnesses:

VICTOR LEONARD, GEORGES DE RESET.

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